
...this mean little skull,
or Kermit the Frog.
The Big Bang Theory Season 3, Episode 3

Or you're the FROG who's
been kissed by a princess
The Big Bang Theory Season 7, Episode 16

Or you're just
a tall, annoying FROG.
The Big Bang Theory Season 7, Episode 16

From now on, "FROG" is me, "sandwich"
means you, and "lemon" means rocket.
The Big Bang Theory Season 6, Episode 3

Well, I'm sorry
I'm not a FROG.
The Big Bang Theory Season 12, Episode 17